Supercapacitors Welding
supercapacitordevice As a core energy storage device for new energy, welding has strict requirements for accuracy and reliability. In production, copper aluminum dissimilar welding is prone to generate brittle intermetallic compounds; 0.1-0.3 mm ultra-thin ear tips are prone to burn through or virtual soldering; Laser welding of high reactive materials such as copper is difficult, and welding spatter can easily cause internal short circuits, while also meeting the requirements of large-scale production High qualification rate Requirement.
GW Laser Core Technology
GW Core Technologies
FRM technology
FRM-Flow Regulation Mode is a laser product platform for controlled beam profile of GW laser. The design intention is to regulate the flow of small holes and molten pool, making the process stable and repeatable on difficult to machine materials.
Low splash: Press down on splashes from the source to prevent contamination of the workpiece surface and lens.
Less/no pores FRM inhibits small pore pores; Aluminum hydrogen pores require pre-treatment and gas treatment, with an overall porosity of ≤ 1%.
Good airtightness: No through holes, helium detection/blasting passes through once, and the seal is reliable and leak proof.
Copper absorptance vs wavelength
976nm high brightness pumping technology
wall-plug efficiency >43% (competitor 915nm pump<32%)
3kW@20 μ m core diameter, energy density Reaching~4 × 10 ⁹ W/cm ², far exceeding the welding threshold of copper materials (≥ 120 MW/cm ²)
shorter Active fiber length Reduce nonlinear effects and improve beam quality
P3C AI Welding Consistency System
Laser power fluctuation<± 1.5% (industry standard ± 3-5%, leading the accuracy of GW by 2 times)
Modulation response time<10μs
power Consistent x workmanship Consistent x Product Consistent, MES full chain traceability
Each weld seam generates“Digital Birth Certificate”
CHF homogenization flat spot
specially designed for Shell sealing weldingdesignUniformity of heat affected zone±5%，
Batch Consistency The best in the industry.
Application scenarios of supercapacitor welding
Application Scenarios
Busbar welding
Material Copper aluminum composite or pure copper busbar, thickness 3-4mm
Recommended Solution: YLP-FRM-3000/5000W（14/100μm）
Key achievements Tensile strength ≥ 90% of the base material, reducing splashing by 80%+
Extreme ear cover plate welding
Material Aluminum ear 0.1-0.3mm+aluminum cover plate
Recommended Solution: YLP-FRM-2000/2000W， Low power precision mode
Key achievements 100% airtightness, yield>99.9%, welding speed 3-5 times faster than traditional solutions
Shell sealing welding
Material Aluminum alloy shell, wall thickness 0.8-2mm
Recommended Solution：FRM + CHF
Key achievements Full circumference sealing, thermal deformation<0.1mm
Seal pin welding
Material Aluminum alloy sealing nail+cover plate
Recommended Solution YLPS-2500/14 μ m SPP Super Pulse Mode
Key achievements Precision thermal management, no thermal deformation,
100% airtightness
Customer Value Comparison
Customer Value Comparison
GW LASER assists in the intelligent manufacturing of supercapacitors
Smart Supercapacitor Production
Based on the four core technologies of FRM melt pool flow control mode, 976nm high brightness pump, P3C AI welding consistency system, and CHF homogenization flat spot, GW Laser build Laser welding solution suitable for the entire process of supercapacitors. Coverage Busbar, pole ear cover plate, shell sealing, sealing nail welding
At typical workstations, the entire technology can effectively suppress the formation of brittle intermetallic compounds, significantly reduce splashing and porosity hazards, and ensure stable and reliable airtightness.
oriented towards Energy storage computing power, industrial backup power supply Waiting for the high-speed growth track, we can provide customers with full process technical support from process sampling, parameter development to production line implementation, empowering the supercapacitor
industry to achieve High quality scaling batch production.
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